From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 4 Nov 2014 23:30:44 +0000 (-0200)
Subject: KVM: x86: update masterclock values on TSC writes
X-Git-Tag: omap-for-v3.19/fixes-rc1~43^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f187922ddf6b67f2999a76dcb71663097b75497;p=pandora-kernel.git

KVM: x86: update masterclock values on TSC writes

When the guest writes to the TSC, the masterclock TSC copy must be
updated as well along with the TSC_OFFSET update, otherwise a negative
tsc_timestamp is calculated at kvm_guest_time_update.

Once "if (!vcpus_matched && ka->use_master_clock)" is simplified to
"if (ka->use_master_clock)", the corresponding "if (!ka->use_master_clock)"
becomes redundant, so remove the do_request boolean and collapse
everything into a single condition.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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